Yeah that's what I thought, I didn't understand the graph correctly :whip:

Dsch# 145

Cell IR reporting 1mOhm (cell temp 126F) CHARGE

DISCHARGE

Cell voltage: 3.447 (discharged a bit to get rid of top charge~99%)

Cell voltage under load: 3.089v. (after 30 secs of discharge

Discharge time: 1:57

Forgot to post the cell temp at start of discharge: 158F

Cell after discharge: ~170F

FROZEN CELL TEST

Cell temperature: -26 C (-14 F.)

Cell voltage before discharge @ -26 C: 3.456v

Discharge time: 1:56 secs (not 100% DOD, ~70% DOD)

Cell voltage with the 16ft of booster cable (6awg.): 2.02volts
Cell voltage at end of discharge: 2.86volts
Cell temp end discharge: ~10 C (50 F)

Quite a difference in start temp and end temp, at sub zero temperatures the cell is dissipating much more energy as heat... as you can see in the voltage drop.

Dsch#165 IR 2mOhm

4340mah

Any ideas for abusing this cell?

Well I'm at dsch # 200 and the cell reports up to 4360mah still and between 1-2mOhm according to 720i. If no one cares about this then let me know, otherwise I have no interest in cycling this thing.

A123 claims this thing can handle up to 10,000 cycles or ~280kwh energy throughput before it hits 80% of original capacity, I think that all we need to know, it's a tough little bastard, good for power cycling, but definitely not energy density, as it's only 70Wh/kg vs. 133Wh/kg for their 20Ah pouch cell.

This cell would be stellar as an engine starter battery.